Z.prototype.send=function(a,b,c,d){if(this.a)throwError("[goog.net.XhrIo] Object is active with another request="+this.gb+"; newUri="+a);b=b?b.toUpperCase():"GET";this.gb=a;this.Ha="";this.$a=!1;this.N=!0;this.a=this.Ta?Rd(this.Ta):Rd(Pd);this.Sa=this.Ta?Od(this.Ta):Od(Pd);this.a.onreadystatechange=t(this.Kb,this);this.Lc&&"onprogress"inthis.a&&(this.a.onprogress=t(function(a){this.Jb(a,!0)},this),this.a.upload&&(this.a.upload.onprogress=t(this.Jb,this)));try{this.fb=!0,this.a.open(b,String(a),